Dear WW: For the second time, I must politely disagree with you. Again, my first objection is in line with TIME's old slogan: Curt, Clear, Complete. I doubt very much that even ten percent of TIME's readers have encountered the word before. That would be OK in Atlantic Monthly, but not in a news weekly. In the second place, "fungible" involves two quantities which are being exchanged. Defection involves only one.I wondered mementarily if the author was being influence by subliminal recollection of a word TIME publicized almost twenty years ago, when special ammunition used in war game had projectiles that did not damage armored vehicles, but instantly broke into harmless fragments. and were thus called "frangible". It would be a better word for breaking the oath that all soldiers take to be loyal.